USN-2766-1: Spice vulnerabilities

7 October 2015

spice vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 15.04
  • Ubuntu 14.04 LTS

Summary

Spice could be made to crash or run programs.

Software Description

  • spice - SPICE protocol client and server library

Details

Frediano Ziglio discovered multiple buffer overflows, undefined behavior signed integer operations, race conditions, memory leaks, and denial of service issues in Spice. A malicious guest operating system could potentially exploit these issues to escape virtualization. (CVE-2015-5260, CVE-2015-5261)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 15.04
libspice-server1 - 0.12.5-1ubuntu0.2
Ubuntu 14.04 LTS
libspice-server1 - 0.12.4-0nocelt2ubuntu1.2

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to restart qemu guests to make all the necessary changes.

References